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http://dx.doi.org/10.4313/JKEM.2008.21.6.524

Piezoelectric Properties of PZW-PMN-PZT Low Loss Multilayer Actuator according to the Number of Multilayer using Pure Ag Internal Electrode  

Yoo, Ju-Hyun (세명대학교 전기공학과)
Lee, Kab-Soo (세명대학교 전기공학과)
Lee, Il-Ha (세명대학교 전기공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.21, no.6, 2008 , pp. 524-529 More about this Journal
Abstract
In this paper, in order to develop low loss multilayer actuator, piezoelectric properties of PZW-PMN-PZT multilayer actuator sintered at $900^{\circ}C$ low temperature were investigated according to the number of multilayer. The multilayer actuator was fabricated using tape casting method and used pure Ag internal electrode. The density above $8.0\;g/cm^3$ was obtained at all specimens. With increasing number of multilayer, effective electromechanical coupling factor($k_{eff}$) was increased. $k_{eff}$ of multilayer actuator shows the maximum value of 0.283 at 11 layers actuator. However, effective mechanical quality factor(Qm') was decreased according to the increase of number of multilayer. The Qm' of multilayer actuator showed the maximum value of 920 at 5 layers actuator.
Keywords
Multiiayer actuator; Ag paste; Two-stage calcination; PZW-PMN-PfT ceramics properties;
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Times Cited By KSCI : 2  (Citation Analysis)
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